Methods Of Stand Cutting; Cutting Problems; Maintenance, Servicing And Storage; Travelling Wheels - Vari DS-521D Bedienungsanleitung

2.4.3.2 Methods of stand cutting


Remove any solid parts form the stand before cutting (such as stones, wires, loose construction leftovers, etc.), as these could be thrown
away or damage the machine. If these cannot be removed, avoid them.
It is necessary to keep the lower disc sliding across the land without bouncing off when cutting in uneven terrain. Disc bouncing causes low quality
stand cutting and uneven stubble.
Let the engine and cutting disc spin in their maximum rpm, and start moving against the stand you wish to cut. The cutting disc throws cut stand onto
the right side, where it is windrowed by the side screen.
➢ Always keep the cut brush on the left side form the machine when cutting (Pict.5).
➢ When cutting on slopes it is best to move along the slope contour line. Keep the safe climbing ability (Table 3)!
In case the cut stand is too dense, inter grown, rotten, or flattened, it is necessary to adjust the machine cutting width, so that the cutting disc rpm
would not be too low, and thus causing low cutting quality.
2.4.3.2.1

Cutting problems

 Be especially careful when lifting and reversing the machine!
 Always turn the engine off when cleaning the space under the top cover!

Always tip the machine backwards on its handlebars only. Always be especially careful when moving in the space under a lifted
machine. Secure the cutter from spontaneous movement!
 Always be especially careful when cleaning the space under the top cover. The cutting blades are sharp. Use work gloves, or other
convenient objects, e.g. a piece of branch, for cleaning the machine.

Before continuing any activity on the machine or its surroundings, always wait until the cutting disc stops.
1. The cutting disc and the engine rpm are both slowing down, but the engine does not stall.
➢ Stop the machine immediately, reverse slightly while lifting the front of the machine a bit (by pressing the handlebars down). The
space under the top cover partially cleans itself from extensive amounts of grass mass. Start moving against the stand again.
2. Cutting disk stopped spinning, the engine staled.
➢ Release both handlebars levers and lift the cutter by pressing the handlebars. Move the cutter slightly backwards. Clean the space
under the top cover, and spread the cut grass across the surface. Start the engine, turn the cutting disc drive on, and start moving against
the stand again.
3. The cut brushes keeps catching on the side screen (because the stand is too thick).
➢ Stop the cutter and turn the engine off. Dismount the side screen and put it in a safe place, out of the cut area, so that it cannot be
stolen.

2.5 Maintenance, servicing and storage


The weight of the cutter requires two persons for carrying out its maintenance and adjustment.
In order to be happy with our product in the long-term, it is necessary to give it adequate maintenance and servicing care. Regular maintenance
reduces deterioration and ensures proper functioning.
Follow all instructions concerning maintenance and adjustment schedule. It is recommended that you keep a record of the amount of its working time
and conditions (for service needs). It is recommended to let one of our authorised service centres take care of the after-season maintenance, as well as
regular maintenance if you are not sure about your technical skills.

Check the nuts tightening the upper disc blades and nuts tightening the lower disc to the flange before each cutter use.

2.5.1 Travelling wheels

Travelling wheels create an important part of the cutter. Wheels carry the whole weight of the cutter, transfer engine power, and push the cutter into
mesh. Wheels have tyre tubes, which can be easily removed, in case of a defect, due to split rims connected with several bolts.

2.5.1.1 Tyre pressure

Tyre pressure has to be controlled in order to secure proper functioning and long life of the wheels, especially the tyres. Check the pressure before you
start using the cutter. Fill the pressure to MAX before putting the cutter out of service for a longer period of time. Keep equal pressure in right and left
wheels - it helps the cutter to keep a straight track.

Do not exceed the maximum tyre pressure – you risk a tyre explosion!
➢ MAXimum (recommended) tyre pressure: 21 PSI (144,7 kPa or 1,44 bar or 1,42 atm or 0,144 MPa)
57
➢ MINimum allowed tyre pressure: 18 PSI (124,1 kPa or 1,24 bar or 1,22 atm or 0,124 MPa)
In case of permanent tyre pressure release, check and repair possible tyre defect.

Seek authorised service in case you lack appropriate manual skills.
57 Tyre pressure lower than minimum damages the tyre construction and shortens its life.
DS-521D
21